Refactoring file structure, not tested yet

app/db/session.py

@@ -0,0 +1,26 @@
+# app/db/session.py
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from app.core.config import settings
+
+# Create SQLAlchemy engine
+engine = create_engine(
+    settings.database_url,
+    pool_pre_ping=True,  # helps prevent stale connections
+)
+
+# Session factory
+SessionLocal = sessionmaker(
+    autocommit=False,
+    autoflush=False,
+    bind=engine,
+)
+
+# Dependency for FastAPI
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()